WebP Format — What is Web Picture Format?
WebP is a modern image format developed by Google that provides superior compression for images on the web. It supports both lossy and lossless compression with transparency.
Extension
.webp
Compression
Lossy
Transparency
Yes
MIME Type
image/webp
Pros & Cons
✅ Pros
- • 25-34% smaller than JPEG
- • Supports transparency
- • Both lossy and lossless modes
- • Animation support
❌ Cons
- • Limited legacy browser support
- • Less universal than JPEG/PNG
- • Harder to edit in some tools
Best Use Cases
- Web optimization
- Modern websites
- Performance-focused sites
- Replacing both PNG and JPEG
Technical Details
WebP uses VP8 codec for lossy compression and a predictive coding method for lossless. It supports alpha channel transparency in both modes and uses RIFF container format.
History
WebP was announced by Google in 2010 as part of the WebM project. Browser support has grown steadily, with all major browsers now supporting it.
Frequently Asked Questions About WebP
What is WebP (Web Picture Format)?
WebP is a modern image format developed by Google that provides superior compression for images on the web. It supports both lossy and lossless compression with transparency.
Can I open WebP files on Windows and Mac?
Yes, WebP files can be opened on both Windows and Mac using built-in image viewers and most image editing software.
Does WebP support transparency?
Yes, WebP supports transparency (alpha channel), making it suitable for logos, icons, and overlays where you need transparent backgrounds.
Is WebP lossy or lossless?
WebP supports both lossy and lossless compression, making it extremely versatile. You can choose the mode that best fits your needs.
How do I convert WebP to JPG or PNG?
You can convert WebP to JPG or PNG instantly using FormatPic's free online converter. Simply upload your WebP file, choose your output format, and download the result. All processing happens in your browser — no files are uploaded to any server.
What is WebP best used for?
WebP is best used for web optimization, modern websites, performance-focused sites, replacing both png and jpeg. 25-34% smaller than JPEG is one of its key advantages.